Bobbin



0. E. WAIT,

(No. Model.)

Bobbin.

Ir /E Will- E5525. du /0%? 4 UNITED STATES PATENT EEIoE.

OSCAR E. WAIT, OF FALL RIVER, ASSIGNOR OF ONE-HALF TO GEORGE DRAPER &SONS, OF HOPEDALE, MASSACHUSETTS.

BOBBIN.

SPECIFICATION forming part of Letters Patent No. 239,410, dated March29, 1881.

' Application filed October 15, 1880. (No model.)

To all whom it may concern Be it known that I, OsoAR E. WAIT, of FallRiver, county of Bristol, and State of Massachusetts, have invented newand useful Improvements in Bobbins, of which the following description,in connection with the accompanying drawings, is a specification.

This invention relates to bobbins, and has for its object to sostrengthen the base of the bobbin as to prevent it from being broken bythe action of the shuttle-catch thereon or by blows.

Certain patents of the United States granted to Jacob H. Sawyer, No.176,359, April 18, 1876, and to Daniel lVright, No. 169,505, November 2,1875, show the class of bobbin upon which this my invention is animprovement.

In both the Sawyer and the Wright bobbins a shuttle-catch engages anannularly-pro- 2o jecting shoulder or rim forming an integral part ofthe bobbin, the grain of the wood running across the said shoulderparallel with the axis of the bobbin.

A shoulder formed by grooving the base of the bobbin internally, as inthe Sawyer and Wright plans, is very liable to be broken or chipped outby the strain upon it of the shuttle-catch. To obviate this diffioulty Itake a band of tough flexible wood, the grain running in the directionof its length, and wind it spirally to form a tube, and I then out thistube into sections to form rings or bushings, which may be readilyinserted into the bobbin-chamber at its base, a space being left, ifdesired, above the upper end of the bushing, to permit the end of theshuttle-catch to engage the bushing at its upper end. The grain of thewood in the shoulder formed by the upper end of the bushing runssubstantially circumferentially about the bushing rather than verticallyacross it, thus furnishing a very strong shoulder, which cannot bebroken out by the action of the catch upon it.

Figure l is a side elevation, partly in section, of one form ofshuttle-bobbin provided with my improved bushing. Fig. 2 is a verticalsection of a bobbin of different form, Fig.

3 represents a band or piece of tough wood twisted spirally to form atube from which to out the bobbin-bushings, the contiguous edges of theband being pressed or otherwise brought substantially in contact whenthe bushings are out from the spirally-twisted band, preparatory tobeing inserted in the chambered bobbins.

In the practice of my invention I first take an ordinary bobbin, eithersuch as represented at a or b, and provide it at its lower end with asuitable chamber to receive the bushing e, to be hereinafter described.To manufacture this bushing e, I take a narrow band or strip, 0, oftough-grained wood, with the grain running in the direction of itslength, and. twist it spirally about a former or core to form a tubesubstantially such as represented in Fig. 3, the contiguous edges of theband being brought substantially in contact. This done, I cut the saidtube into sections of sufficient length to constitute bushings for andinsert them within the bobbin-chambers. The chamber made in the bobbinto receive the bushing is of such size and shape as to leave a space, a,about the top of the bushing when the bobbin is to be used in a shuttle,thus permitting the top of the bushing to act as a shoulder to beengaged by the usual bobbin or shuttlecatch shown in the Wright patentreferred to, or by any other suitable well-known catch. The grain of thewood in this bushing, forming the shoulder to be acted upon by theshuttle-catch, runs substantially about the bobbin in the direction ofthe length of the bushing, or in the direction of the arrow thereon,thus producing a very strong shoulder, which. cannot be broken by theaction of the shuttleoatch upon it.

Instead of using wood for the band 0 or bushings, I might use any otherwell-known strong bushing of vegetable or animal nature, such asvulcanized fiber.

A bobbin provided at its base with a bushing, 0, as described, cannot bebroken as readily as other bobbins, or split by reason of strain withinthe base of the bobbin, or by blows or undue pressure upon the outerside.

My invention is equally applicable to speeder In testimony whereof Ihave signed my name and other bobbins. to this specification in thepresence of two 16 I claimi subscribing witnesses. As an improvedarticle of manufacture, a s 5 chambered bobbin provided at or near itsbase ObOAR WAIT with a spirally-twisted bushing, a; substan- Witnesses:tially such as described, and for the purpose F. J. DUTGHER,

set forth. W. S. BANOROFT.

